Answer:
7. 
8.
Step-by-step explanation:
7. Using Cosine Rule

=>


=>Using Sine Rule


8
Answer:the answers are: 0,1 and 2,7 and 4, 14
Step-by-step explanation:
Switch them if not in the right order, one of them is 2,7 because one of the dots are in between 6 and 8
<h2>
Answer:</h2><h2>Inflation chart or graph could be used to indicate a greater increase in monthly gas prices</h2>
Step-by-step explanation:
Inflation is a quantitative measure of the rate at which the average price level of a basket of selected goods and services in an economy increases over some period of time.
Inflation chart is ususally used to inflation of a product which can be represented in terms of peecentage of inflation or inflation in product rate,
To indicate a greater increase in monthly gas prices, inflation chart can be used for gtaphical representation with month's name in X axis and the gas price in Y axis.
12 hours..........
+ - = 1
Multiply by 12 to clear the fractions
3t + 2t - 4t = 12
t = 12 hrs to fill the pool